Replace SVGDocument by XMLDocument

Source/core/svg/SVGDocumentExtensions.cpp

Index: Source/core/svg/SVGDocumentExtensions.cpp
diff --git a/Source/core/svg/SVGDocumentExtensions.cpp b/Source/core/svg/SVGDocumentExtensions.cpp
index 9593866a5897dfe10268fdcbadfc44d77d359056..c0cc4bf9b9f4e243e6598e82422110b6c84a113b 100644
--- a/Source/core/svg/SVGDocumentExtensions.cpp
+++ b/Source/core/svg/SVGDocumentExtensions.cpp
@@ -24,10 +24,12 @@
 
 #include "XLinkNames.h"
 #include "core/dom/Document.h"
+#include "core/rendering/RenderView.h"
 #include "core/rendering/svg/SVGResourcesCache.h"
-#include "core/svg/SVGElement.h"
 #include "core/svg/SVGFontFaceElement.h"
 #include "core/svg/SVGSVGElement.h"
+#include "core/svg/SVGViewSpec.h"
+#include "core/svg/SVGZoomAndPan.h"
 #include "core/svg/animation/SMILTimeContainer.h"
 #include "wtf/TemporaryChange.h"
 #include "wtf/text/AtomicString.h"
@@ -435,4 +437,42 @@ void SVGDocumentExtensions::removePendingSVGFontFaceElementsForRemoval()
 
 #endif
 
+bool SVGDocumentExtensions::zoomAndPanEnabled() const
+{
+    if (SVGSVGElement* svg = rootElement(*m_document)) {
+        if (svg->useCurrentView()) {
+            if (svg->currentView())
+                return svg->currentView()->zoomAndPan() == SVGZoomAndPanMagnify;
+        } else {
+            return svg->zoomAndPan() == SVGZoomAndPanMagnify;
+        }
+    }
+
+    return false;
+}
+
+void SVGDocumentExtensions::startPan(const FloatPoint& start)
+{
+    if (SVGSVGElement* svg = rootElement(*m_document))
+        m_translate = FloatPoint(start.x() - svg->currentTranslate().x(), start.y() - svg->currentTranslate().y());
+}
+
+void SVGDocumentExtensions::updatePan(const FloatPoint& pos) const
+{
+    if (SVGSVGElement* svg = rootElement(*m_document))
+        svg->setCurrentTranslate(FloatPoint(pos.x() - m_translate.x(), pos.y() - m_translate.y()));
+}
+
+SVGSVGElement* SVGDocumentExtensions::rootElement(const Document& document)
+{
+    Element* elem = document.documentElement();
+    return isSVGSVGElement(elem) ? toSVGSVGElement(elem) : 0;
+}
+
+SVGSVGElement* SVGDocumentExtensions::rootElement() const
+{
+    ASSERT(m_document);
+    return rootElement(*m_document);
+}
+
 }